Case study on Moneyball

  1. Bases on balls (BB): the pitcher fails to throw the ball through a predefined area considered to be hittable (the strike zone), so the batter is permitted to go to first base.

  2. Single: the batter hits the ball and gets to first base.

  3. Double (2B): the batter hits the ball and gets to second base.

  4. Triple (3B): the batter hits the ball and gets to third base.

  5. Home Run (HR): the batter hits the ball and goes all the way home and scores a run.

The visualization of choice when exploring the relationship between two variables like home runs and runs is a scatterplot.

What is the aplication of statistics and data science to baseball called?

Sabermetrics

What is the outcome is not included in the batting average?

A base on balls

Why do we consider team statistics as well as individual player statistcs?

Team statistics are important because the success of individual players depends also on the strength of their team.

You want to know whether teams with more at-bats per game have more runs per game.

Load the Lahman library. Filter the Teams data frame to include years from 1961 to 2001. Make a scatterplot of runs per game versus at bats (AB) per game.

Use the filtered Teams data frame from Question 6. Make a scatterplot of win rate (number of wins per game) versus number of fielding errors (E) per game.

Which of the following is true?

When you examine the scatterplot above, you can see a clear trend towards decreased win rate with increasing number of errors per game.

Use the filtered Teams data frame from Question 6. Make a scatterplot of triples (X3B) per game versus doubles (X2B) per game.

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